| 释义 |
connective, a. and n.|kəˈnɛktɪv|
[f. connect v. + -ive: cf. Mod.F. connectif, -ive. Not on Latin analogies: see the etymological connexive.]
A. adj.
1. Having the character or function of connecting; serving or tending to connect.
1655–60Stanley Hist. Philos. (1701) 211/2 Connex [axiom]..is that which consists of the connective conjunction, if. 1751Harris Hermes ii. iii. Wks. (1841) 196 When prepositions totally lose their connective nature, being converted into adverbs. 1816Singer Hist. Cards 100 There is no connective chain of evidence which might unite this solitary example with the end of the fourteenth..century. 1884Bower & Scott De Bary's Phaner. & Ferns 504 The cells which usually border on the xylem-plates consist of the inner layer of those connective cells which were orginally present in this position.
2. Phys. connective tissue: one of the tissues of the animal body, derived from the mesoblast, which serves to connect and support the various organs, and to form the framework in which their proper cells are sustained; it consists of fibres and protoplasmic cells or ‘corpuscles’ imbedded in a structureless substance. Also called areolar or cellular tissue (by Häckel, connectivum).
(By some physiologists extended to include cartilaginous and osseous tissues.)
1839Baly tr. Müller's Physiol. I. 416 The connective matter or interstitial cellular tissue of the gland. 1846Carpenter Hum. Phys. §623 (L.) The liver of man..has less of connective tissue between its different parts than is found in that of many other mammalia. 1883E. A. Parkyn Syllabus Lect. Anim. & Plant Life iv, Cartilage..is allied to connective tissue and to bone. Indeed, they are both sometimes classed under connective tissue.
B. n. [the adj. used elliptically.]
1. Gram. A connective word or particle.
1751Harris Hermes ii. ii. (1786) 237 Connectives..which according as they connect either Sentences or Words, are called..Conjunctions, or Prepositions. 1875Whitney Life Lang. 95 The relative pronouns are by far the most important of the connectives by which we bind together separate assertions.
2. Bot. The portion of the filament which connects the two lobes of the anther. Also in L. form.
1830Lindley Nat. Syst. Bot. 71 Anthers 2-celled..usually with membranous valves lying on the face of a thick fleshy connectivum. 1835― Introd. Bot. (1848) I. 342 The anther is a body..composed of two parallel lobes or cells..united by the connective. 1888G. Henslow Floral Struct. 61 The style-arms have spread after protrusion through the separated connectives.
3. Phys.
a. = connective tissue.
b. See quot. 1888.
1883M. Foster Physiol. (Science Primers) 9 This stringy packing material..is called connective because it connects all the parts together. In the leg we have skin, fat, muscle, tendons, blood-vessels, nerves and bone all packed together with connective and covered with skin. 1888Rolleston & Jackson Forms Anim. Life 120 The bands of nerve fibres uniting the various ganglia [in the edible snail] are termed ‘commissures’ when they unite the ganglia of the same pair..‘connectives’ when they unite ganglia of different pairs. |